PATEK PHILIPPE SA GENEVE

PATEK PHILIPPE SA GENEVE Patent applications

Patent application number

Title

Published

20140096392

METHOD FOR MAKING A TIMEPIECE COMPONENT - A method of manufacturing a timepiece component, such as a balance, an oscillating mass or a wheel, comprises a micro-manufacturing technique, such as the DRIE technique. The method may comprise forming at least one member in or at the periphery of the structure, of a material different from that of the structure. This member is typically metal and is formed by electro-forming using a cavity of the structure as a mold.

UNIDIRECTIONAL COUPLING-CLUTCH RUNNER - A unidirectional coupling-clutch runner includes a coaxial pinion and wheel which pivot relative to one another. The runner includes a first driving part angularly integral with the pinion having at least one elastic catch with the general shape, in plan view, of a C, one branch of which is elongated and terminates with a free end; and a second driving part angularly integral with the wheel and which is coplanar with the first driving part having an internal wolf-toothing. In the neutral rest position the first and second driving parts do not touch one another, the end of the elastic catches in the rest position which are not elastically deformed being located on a circumference whose diameter is larger than a circumference which goes through the top of the wolf-teeth and smaller than a circumference going through the bottom of the toothing of the second driving part.

12-08-2011

20110222376

DRIVING MECHANISM FOR A CLOCK MOVEMENT - A driving member for a timepiece movement includes a shaft, and a drum and a rotating member both mounted on the shaft. The drum and the rotating member are able to rotate with respect to each other and include teeth on their periphery. First and second superposed spiral springs have outer ends fixed to the drum and to the rotating member respectively and inner ends connected to each other to connect the springs in series. The drum and the rotating member fit together at least in the area of the peripheral wall of the drum so as to together form a closed housing containing the springs.